<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div id="app">
    {{message}}
</div>

<!--引入Vue-->
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<script type="text/javascript">


    var vm = new Vue({
        el: "#app",
        data: {
            message: "Hello Vue"
        }
    });
</script>

</body>
</html>